Should chmod(1) "Absolute modes" section rewrite, adding some text as follows?
Value Permission Directory Listing 0 No read, no write, no execute --- 1 No read, no write, execute --x 2 No read, write, no execute -w- 3 No read, write, execute -wx 4 Read, no write, no execute r-- 5 Read, no write, execute r-x 6 Read, write, no execute rw- 7 Read, write, execute rwx >From http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/permissions.html
